Cleanup: Extract icon related methods outside of util.js

chrome/browser/resources/bookmark_manager/js/compiled_resources.gyp

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
   'targets': [
     {
       'target_name': 'main',
       'variables': {
         'depends': [
           '../../../../../third_party/jstemplate/compiled_resources.gyp:jstemplate',
@@ skipping 15 matching lines @@
           '../../../../../ui/webui/resources/js/cr/ui/menu_item.js',
           '../../../../../ui/webui/resources/js/cr/ui/position_util.js',
           '../../../../../ui/webui/resources/js/cr/ui/splitter.js',
           '../../../../../ui/webui/resources/js/cr/ui/touch_handler.js',
           '../../../../../ui/webui/resources/js/cr/ui/tree.js',
           '../../../../../ui/webui/resources/js/event_tracker.js',
           '../../../../../ui/webui/resources/js/compiled_resources.gyp:i18n_template_no_process',
           '../../../../../ui/webui/resources/js/load_time_data.js',
           '../../../../../ui/webui/resources/js/promise_resolver.js',
           '../../../../../ui/webui/resources/js/util.js',
+          '../../../../../ui/webui/resources/js/icon.js',
           '../../../../../chrome/browser/resources/bookmark_manager/js/bmm.js',
           '../../../../../chrome/browser/resources/bookmark_manager/js/bmm/bookmark_list.js',
           '../../../../../chrome/browser/resources/bookmark_manager/js/bmm/bookmark_tree.js',
           '../../../../../chrome/browser/resources/bookmark_manager/js/dnd.js',
         ],
         'externs': [
           '<(EXTERNS_DIR)/bookmark_manager_private.js',
           '<(EXTERNS_DIR)/chrome_send.js',
           '<(EXTERNS_DIR)/chrome_extensions.js',
           '<(EXTERNS_DIR)/metrics_private.js',
           '<(EXTERNS_DIR)/system_private.js',
           '../../../../../ui/webui/resources/js/template_data_externs.js',
         ],
       },
       'includes': ['../../../../../third_party/closure_compiler/compile_js.gypi'],
     }
   ],
 }